CodeSampleX

Sample

verify jest.mock in pkg:npm/jest@29.6.3

sha256:68097a758e03f3dd503bc5c937a87b9bc0f61de2fe42a1e0adaa314880a22f85

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
Declared environment node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5…
2026-08-29

Case

HOW
Goal
verify jest.mock in pkg:npm/jest@29.6.3
Packages
Symbols
  • jest.mock
Environment
node 22.23.2
Created
2026-08-29T05:57:05Z

Contract

  1. jest package at version 29.6.3 exports runCLI, run, getVersion, createTestScheduler, and SearchSource
  2. Jest environment declaration provides jest.mock method supporting module name, factory callback, and virtual options
  3. jest.mock replaces module exports with mock factory implementations in test runner execution
  4. jest.mock supports mocking non-existent virtual modules using { virtual: true } option
  5. jest.requireActual bypasses jest.mock and returns original unmocked module implementation

Files

  • PROMPT.md
  • csx.json
  • index.mjs
  • package-lock.json
  • package.json
  • spec.json
  • test/contract.mjs
  • test/fixtures/greeter.js
  • test/fixtures/mock.test.js

Download the source artifact (tar.gz)

Origin Seeder

anonymous